diff options
author | tobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c> | 2008-06-08 15:33:48 +0000 |
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committer | tobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c> | 2008-06-08 15:33:48 +0000 |
commit | 46bb010ca7c5eb04551c030105f9999ca80e472f (patch) | |
tree | 3cb6a6bdd7e4e62623c6a83b5d22c1c0dfad73e8 /Game/Code/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas | |
parent | f4425b4558b7fd86de874035f81ea290c987e96d (diff) | |
download | usdx-46bb010ca7c5eb04551c030105f9999ca80e472f.tar.gz usdx-46bb010ca7c5eb04551c030105f9999ca80e472f.tar.xz usdx-46bb010ca7c5eb04551c030105f9999ca80e472f.zip |
- set svn:eol-style to native
- removed some svn:executable properties from non-executable files
git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@1144 b956fd51-792f-4845-bead-9b4dfca2ff2c
Diffstat (limited to 'Game/Code/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas')
-rw-r--r-- | Game/Code/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas | 432 |
1 files changed, 216 insertions, 216 deletions
diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas index 64009176..8ba3946f 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlstreams.pas @@ -1,216 +1,216 @@ -unit sdlstreams;
-{
- $Id: sdlstreams.pas,v 1.1 2004/02/05 00:08:20 savage Exp $
-
-}
-{******************************************************************}
-{ }
-{ SDL - Simple DirectMedia Layer }
-{ Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga }
-{ }
-{ Portions created by Chris Bruner are }
-{ Copyright (C) 2002 Chris Bruner. }
-{ }
-{ Contributor(s) }
-{ -------------- }
-{ }
-{ }
-{ Obtained through: }
-{ Joint Endeavour of Delphi Innovators ( Project JEDI ) }
-{ }
-{ You may retrieve the latest version of this file at the Project }
-{ JEDI home page, located at http://delphi-jedi.org }
-{ }
-{ The contents of this file are used with permission, subject to }
-{ the Mozilla Public License Version 1.1 (the "License"); you may }
-{ not use this file except in compliance with the License. You may }
-{ obtain a copy of the License at }
-{ http://www.mozilla.org/NPL/NPL-1_1Final.html }
-{ }
-{ Software distributed under the License is distributed on an }
-{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or }
-{ implied. See the License for the specific language governing }
-{ rights and limitations under the License. }
-{ }
-{ Description }
-{ ----------- }
-{ Shows how to use OpenGL to do 2D and 3D with the SDL libraries }
-{ }
-{ }
-{ Requires }
-{ -------- }
-{ SDL runtime libary somewhere in your path }
-{ The Latest SDL runtime can be found on http://www.libsdl.org }
-{ }
-{ Programming Notes }
-{ ----------------- }
-{ }
-{ }
-{ }
-{ }
-{ }
-{ Revision History }
-{ ---------------- }
-{ January 11 2002 - CB : Software embraced and extended by }
-{ Chris Bruner of Crystal Software }
-{ (Canada) Inc. }
-{ }
-{ February 11 2002 - DL : Added FreePascal support as suggested }
-{ by "QuePasha Pepe" <mrkroket@hotmail.com> }
-{ }
-{******************************************************************}
-{
- $Log: sdlstreams.pas,v $
- Revision 1.1 2004/02/05 00:08:20 savage
- Module 1.0 release
-
-
-}
-
-{$i jedi-sdl.inc}
-
-interface
-
-uses
- Classes,
- SysUtils,
- sdl,
- sdlutils;
-
-{$IFDEF FPC}
-type
- EinvalidContainer=class(Exception);
- {$ENDIF}
-
-function LoadSDLBMPFromStream( Stream : TStream ) : PSDL_Surface;
-procedure SaveSDLBMPToStream( SDL_Surface : PSDL_Surface; stream : TStream );
-function SDL_Swap16( D : UInt16 ) : Uint16;
-function SDL_Swap32( D : UInt32 ) : Uint32;
-function SDLStreamSetup( stream : TStream ) : PSDL_RWops;
-// this only closes the SDL_RWops part of the stream, not the stream itself
-procedure SDLStreamCloseRWops( SDL_RWops : PSDL_RWops );
-
-implementation
-
-function SDL_Swap16( D : UInt16 ) : Uint16;
-begin
- Result := ( D shl 8 ) or ( D shr 8 );
-end;
-
-function SDL_Swap32( D : UInt32 ) : Uint32;
-begin
- Result := ( ( D shl 24 ) or ( ( D shl 8 ) and $00FF0000 ) or ( ( D shr 8 ) and $0000FF00 ) or ( D shr 24 ) );
-end;
-
-(*function SDL_Swap64(D : UInt64) : Uint64;
-var hi,lo : Uint32;
-begin
- // Separate into high and low 32-bit resultues and swap them
- lo := Uint32(D and $0FFFFFFFF); // bloody pascal is too tight in it's type checking!
- D := D shr 32;
- hi = Uint32((D and $FFFFFFFF));
- result = SDL_Swap32(lo);
- result := result shl 32;
- result := result or SDL_Swap32(hi);
-end;
-*)
-
-function SdlStreamSeek( context : PSDL_RWops; offset : Integer; whence : Integer ) : integer; cdecl;
-var
- stream : TStream;
- origin : Word;
-begin
- stream := TStream( context.unknown );
- if ( stream = nil ) then
- raise EInvalidContainer.Create( 'SDLStreamSeek on nil' );
- case whence of
- 0 : origin := soFromBeginning; // Offset is from the beginning of the resource. Seek moves to the position Offset. Offset must be >= 0.
- 1 : origin := soFromCurrent; // Offset is from the current position in the resource. Seek moves to Position + Offset.
- 2 : origin := soFromEnd;
- else
- origin := soFromBeginning; // just in case
- end;
- Result := stream.Seek( offset, origin );
-end;
-
-function SDLStreamWrite( context : PSDL_RWops; Ptr : Pointer;
- size : Integer; num : Integer ) : Integer; cdecl;
-var
- stream : TStream;
-begin
- stream := TStream( context.unknown );
- if ( stream = nil ) then
- raise EInvalidContainer.Create( 'SDLStreamWrite on nil' );
- try
- Result := stream.Write( Ptr^, Size * num ) div size;
- except
- Result := -1;
- end;
-end;
-
-function SdlStreamRead( context : PSDL_RWops; Ptr : Pointer; size : Integer; maxnum
- : Integer ) : Integer; cdecl;
-var
- stream : TStream;
-begin
- stream := TStream( context.unknown );
- if ( stream = nil ) then
- raise EInvalidContainer.Create( 'SDLStreamRead on nil' );
- try
- Result := stream.read( Ptr^, Size * maxnum ) div size;
- except
- Result := -1;
- end;
-end;
-
-function SDLStreamClose( context : PSDL_RWops ) : Integer; cdecl;
-var
- stream : TStream;
-begin
- stream := TStream( context.unknown );
- if ( stream = nil ) then
- raise EInvalidContainer.Create( 'SDLStreamClose on nil' );
- stream.Free;
- Result := 1;
-end;
-
-function SDLStreamSetup( stream : TStream ) : PSDL_RWops;
-begin
- result := SDL_AllocRW;
- if ( result = nil ) then
- raise EInvalidContainer.Create( 'could not create SDLStream on nil' );
- result.unknown := TUnknown( stream );
- result.seek := SDLStreamSeek;
- result.read := SDLStreamRead;
- result.write := SDLStreamWrite;
- result.close := SDLStreamClose;
- Result.type_ := 2; // TUnknown
-end;
-
-// this only closes the SDL part of the stream, not the context
-
-procedure SDLStreamCloseRWops( SDL_RWops : PSDL_RWops );
-begin
- SDL_FreeRW( SDL_RWops );
-end;
-
-function LoadSDLBMPFromStream( stream : TStream ) : PSDL_Surface;
-var
- SDL_RWops : PSDL_RWops;
-begin
- SDL_RWops := SDLStreamSetup( stream );
- result := SDL_LoadBMP_RW( SDL_RWops, 0 );
- SDLStreamCloseRWops( SDL_RWops );
-end;
-
-procedure SaveSDLBMPToStream( SDL_Surface : PSDL_Surface; stream : TStream );
-var
- SDL_RWops : PSDL_RWops;
-begin
- SDL_RWops := SDLStreamSetup( stream );
- SDL_SaveBMP_RW( SDL_Surface, SDL_RWops, 0 );
- SDLStreamCloseRWops( SDL_RWops );
-end;
-
-end.
-
+unit sdlstreams; +{ + $Id: sdlstreams.pas,v 1.1 2004/02/05 00:08:20 savage Exp $ + +} +{******************************************************************} +{ } +{ SDL - Simple DirectMedia Layer } +{ Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga } +{ } +{ Portions created by Chris Bruner are } +{ Copyright (C) 2002 Chris Bruner. } +{ } +{ Contributor(s) } +{ -------------- } +{ } +{ } +{ Obtained through: } +{ Joint Endeavour of Delphi Innovators ( Project JEDI ) } +{ } +{ You may retrieve the latest version of this file at the Project } +{ JEDI home page, located at http://delphi-jedi.org } +{ } +{ The contents of this file are used with permission, subject to } +{ the Mozilla Public License Version 1.1 (the "License"); you may } +{ not use this file except in compliance with the License. You may } +{ obtain a copy of the License at } +{ http://www.mozilla.org/NPL/NPL-1_1Final.html } +{ } +{ Software distributed under the License is distributed on an } +{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } +{ implied. See the License for the specific language governing } +{ rights and limitations under the License. } +{ } +{ Description } +{ ----------- } +{ Shows how to use OpenGL to do 2D and 3D with the SDL libraries } +{ } +{ } +{ Requires } +{ -------- } +{ SDL runtime libary somewhere in your path } +{ The Latest SDL runtime can be found on http://www.libsdl.org } +{ } +{ Programming Notes } +{ ----------------- } +{ } +{ } +{ } +{ } +{ } +{ Revision History } +{ ---------------- } +{ January 11 2002 - CB : Software embraced and extended by } +{ Chris Bruner of Crystal Software } +{ (Canada) Inc. } +{ } +{ February 11 2002 - DL : Added FreePascal support as suggested } +{ by "QuePasha Pepe" <mrkroket@hotmail.com> } +{ } +{******************************************************************} +{ + $Log: sdlstreams.pas,v $ + Revision 1.1 2004/02/05 00:08:20 savage + Module 1.0 release + + +} + +{$i jedi-sdl.inc} + +interface + +uses + Classes, + SysUtils, + sdl, + sdlutils; + +{$IFDEF FPC} +type + EinvalidContainer=class(Exception); + {$ENDIF} + +function LoadSDLBMPFromStream( Stream : TStream ) : PSDL_Surface; +procedure SaveSDLBMPToStream( SDL_Surface : PSDL_Surface; stream : TStream ); +function SDL_Swap16( D : UInt16 ) : Uint16; +function SDL_Swap32( D : UInt32 ) : Uint32; +function SDLStreamSetup( stream : TStream ) : PSDL_RWops; +// this only closes the SDL_RWops part of the stream, not the stream itself +procedure SDLStreamCloseRWops( SDL_RWops : PSDL_RWops ); + +implementation + +function SDL_Swap16( D : UInt16 ) : Uint16; +begin + Result := ( D shl 8 ) or ( D shr 8 ); +end; + +function SDL_Swap32( D : UInt32 ) : Uint32; +begin + Result := ( ( D shl 24 ) or ( ( D shl 8 ) and $00FF0000 ) or ( ( D shr 8 ) and $0000FF00 ) or ( D shr 24 ) ); +end; + +(*function SDL_Swap64(D : UInt64) : Uint64; +var hi,lo : Uint32; +begin + // Separate into high and low 32-bit resultues and swap them + lo := Uint32(D and $0FFFFFFFF); // bloody pascal is too tight in it's type checking! + D := D shr 32; + hi = Uint32((D and $FFFFFFFF)); + result = SDL_Swap32(lo); + result := result shl 32; + result := result or SDL_Swap32(hi); +end; +*) + +function SdlStreamSeek( context : PSDL_RWops; offset : Integer; whence : Integer ) : integer; cdecl; +var + stream : TStream; + origin : Word; +begin + stream := TStream( context.unknown ); + if ( stream = nil ) then + raise EInvalidContainer.Create( 'SDLStreamSeek on nil' ); + case whence of + 0 : origin := soFromBeginning; // Offset is from the beginning of the resource. Seek moves to the position Offset. Offset must be >= 0. + 1 : origin := soFromCurrent; // Offset is from the current position in the resource. Seek moves to Position + Offset. + 2 : origin := soFromEnd; + else + origin := soFromBeginning; // just in case + end; + Result := stream.Seek( offset, origin ); +end; + +function SDLStreamWrite( context : PSDL_RWops; Ptr : Pointer; + size : Integer; num : Integer ) : Integer; cdecl; +var + stream : TStream; +begin + stream := TStream( context.unknown ); + if ( stream = nil ) then + raise EInvalidContainer.Create( 'SDLStreamWrite on nil' ); + try + Result := stream.Write( Ptr^, Size * num ) div size; + except + Result := -1; + end; +end; + +function SdlStreamRead( context : PSDL_RWops; Ptr : Pointer; size : Integer; maxnum + : Integer ) : Integer; cdecl; +var + stream : TStream; +begin + stream := TStream( context.unknown ); + if ( stream = nil ) then + raise EInvalidContainer.Create( 'SDLStreamRead on nil' ); + try + Result := stream.read( Ptr^, Size * maxnum ) div size; + except + Result := -1; + end; +end; + +function SDLStreamClose( context : PSDL_RWops ) : Integer; cdecl; +var + stream : TStream; +begin + stream := TStream( context.unknown ); + if ( stream = nil ) then + raise EInvalidContainer.Create( 'SDLStreamClose on nil' ); + stream.Free; + Result := 1; +end; + +function SDLStreamSetup( stream : TStream ) : PSDL_RWops; +begin + result := SDL_AllocRW; + if ( result = nil ) then + raise EInvalidContainer.Create( 'could not create SDLStream on nil' ); + result.unknown := TUnknown( stream ); + result.seek := SDLStreamSeek; + result.read := SDLStreamRead; + result.write := SDLStreamWrite; + result.close := SDLStreamClose; + Result.type_ := 2; // TUnknown +end; + +// this only closes the SDL part of the stream, not the context + +procedure SDLStreamCloseRWops( SDL_RWops : PSDL_RWops ); +begin + SDL_FreeRW( SDL_RWops ); +end; + +function LoadSDLBMPFromStream( stream : TStream ) : PSDL_Surface; +var + SDL_RWops : PSDL_RWops; +begin + SDL_RWops := SDLStreamSetup( stream ); + result := SDL_LoadBMP_RW( SDL_RWops, 0 ); + SDLStreamCloseRWops( SDL_RWops ); +end; + +procedure SaveSDLBMPToStream( SDL_Surface : PSDL_Surface; stream : TStream ); +var + SDL_RWops : PSDL_RWops; +begin + SDL_RWops := SDLStreamSetup( stream ); + SDL_SaveBMP_RW( SDL_Surface, SDL_RWops, 0 ); + SDLStreamCloseRWops( SDL_RWops ); +end; + +end. + |